Errorprovider and Tooltip in design time?

Hi,

I want to display some information to the user in the design time. For example, for a certain type of panel, I want to enforce a certain type of child control to be put on it before saving the design. If the required child controls are not on the panel, I want to display error message using something like errorprovider and tooltip (in design time). Is there a way to do this

Thanks.